Honestly, I have no idea what it means by decomposition, but this is my best bet on what it means: Dividing the polygon into smaller, easier sections and solve for area and add them up.
The sum of interior of all angles in a triangle = 180
Given 3 angles = <span>80°, 2x + 2°, and 5x°
To find x:
</span><span>80°+ 2x + 2 + 5x = 180
7x + 82 = 180
7x = 98
x = 14
answer
x = 14 </span>
Answer:
y=1/2x+6
Step-by-step explanation:
y=mx+b
mx = slope = 1/2
b = y-intercept = 6